Development of a parametric down-conversion source for two-photon absorption experiments
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Author/Creator ORCID
Date
2007-09-25
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Citation of Original Publication
T. B. Pittman "Development of a parametric down-conversion source for two-photon absorption experiments", Proc. SPIE 6710, Quantum Communications and Quantum Imaging V, 67100B (25 September 2007); https://doi.org/10.1117/12.734444
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©2007 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
©2007 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Subjects
Abstract
We describe a fiber-coupled parametric down-conversion (PDC) source designed for entanglement-enhanced twophoton absorption experiments. The key feature of the source is a narrowband (~1 MHz) UV diode pumping laser which can be tuned to match the energy of the 5S₁∕₂ to 5D₅∕₂ two-photon transition in Rubidium. The weak narrowband pumping beam is delivered to the PDC crystal through a single-mode fiber, which allows the source to be pre-aligned with a much stronger broadband auxiliary pump laser. The motivation for this PDC source lies within the context of Linear Optics Quantum Computing and Quantum Zeno Gates.